A nenu Method of mcnfiirbig the EkBrk Charge. l-j.y 



experrments, by changing the weight applied to the balance, and alfo the diftance of the 

 difcharging balls. 



Experiment I .. 

 THE cleflromettr being adjufted with its leaft weight; the difcharging balls placed. 

 at the diftance of one inch ; and the other parts of the apparatus arranged as before de- 

 fcribed ; the electrical machine was put in motion, the battery and alfo the jar began to 

 receive a charge, as was {hewn by the repulfion of a pith-ball on a graduated quadrant 

 placed upon the eledlrometer : 



1. After the firfl: explofion of the eledrical jar, that is, after the battery had received 

 one nieafure of the eleftrical fluid, a difcharging rod was applied to complete the circuit 

 in which the iron wire was placed ; but, upon the difcharge of the battery, no change of 

 appearance was vifible in the wire. 



2. The operation of the ele£lrical machine being continued', the difcharging rod, after 

 two explofions of the jar, that is, after the battery had received two meafures, was applied as 

 before; but, upon the difcharge of the battery, no change appeared on the wire. 



3. The battery was then charged with three meafures ; and upon difcharging it at 

 before, luminous particles of the wire were thrown off. 



4. The battery, having received four meafures, the wire, upon the difcharge, exhibited 

 nearly the fame appearance as before. 



5. The battery, having received five meafures, was difcharged ;■ the wire was red-hot, 

 and feparated. 



6. The battery, having received fix meafures, was difcharged ; the wire was difperfed. 

 in red-hot globules. 



The battery, upon receiving between nine and ten meafures, made a fpontaneous- 

 difcharge. 



Experiment 2. 



IN the fecond fet of experiments, the apparatus was arranged as before, and tlie elec- 

 trometer adjufted with the fame weight, but the difcharging balls were placed at the dif- 

 tance of two inches. The refults were, upon difcharging the battery, after having received 



1 Meafure, - No alteration in the wire. 



2 Meafures, - Luminous particles thrown ofE- 



3 Meafures, - The fame, with fmoke. 



4 Meafures, - Red-hot, and feparated. 



5 Meafures, - Difperfed in red-hot globules. 

 Between 7 and 3 Meafures, - A fpontancous difcharge of the battery.. 



Experiment 3. 

 THE apparatus being arranged as before, the elc£lrometer was adjufted with its greateft 

 weight, and the difcharging-balls placed at the diftance of one inch : the refults were, upooi 

 difcharging the battery, after having received 



1 Meafure, - No alteration in the wire. 



2 Meafures, - Luminous particles thrown off. 



3 Meafures, - The fame, 



4' Meafures,, 



